Daniella Down is an English actor and voice-over artist known for her work in film, theatre, and anime dubbing. She began her career in the United Kingdom, where she earned a first-class honours degree in Performing Arts and co-founded the theatre company En-root, for which she toured in self-devised pieces such as Havisham. Her early stage work also included performances in productions like West Side Story and Woyzeck with FullTilt Theatre.

Returning to her hometown of Hong Kong, Down expanded her professional repertoire to include voice-over work. She worked as a voice artist dubbing both Chinese and Japanese cartoons and films into English, a role that also included voicing commercials and electronic games. This phase of her career is particularly relevant to her recognition within the anime community.

In the realm of anime, Daniella Down is known for her voice roles in the Inazuma Eleven GO series. She provided the English voice for the character Adé Kebé in Inazuma Eleven GO. Additionally, she is recognized for voicing the protagonist Arion Sherwind, known as Arion Sherwind in the English adaptation of the same series.

Beyond voice acting, Down has maintained a diverse career in live-action performance across multiple continents. She appeared in the Nigerian-British comedy Mum, Dad, Meet Sam and gained prominence for her role as Deirdre Winston in the Nollywood blockbuster The Wedding Party and its sequel, The Wedding Party 2: Destination Dubai, which set box office records in Nigeria. Her international credits also include the film The Conversations and a role in the Dutch crime series Sleepers. As an actor based in Amsterdam, she continues to work in film, theatre, and voice-overs, with her creative projects extending into writing and physical performance disciplines such as aerial arts.